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The Transient-flow Theory and Its Use in Subsurface Drainage of Irrigated Land
Lee D. Dumm, American Society of Civil Engineers · Yayınevi bilinmiyor
36 sayfa · 1967
Subsurface drainage
Drain-spacing Method Used by the Bureau of Reclamation
Lee D. Dumm, United States. Bureau of Reclamation, United States. Soil Conservation Service, United States. Agricultural Research Service · Yayınevi bilinmiyor
13 sayfa · 1962
Ground-water management
Organized Drainage Districts in Mississippi
John T. Olsen, Lee D. Dumm, Lewis A. Jones, Mississippi Board of Development, United States. Soil Conservation Service · Yayınevi bilinmiyor
32 sayfa · 1941
Drainage